S
M
T
W
T
F
S
30
77°
57°
31
76°
55°
1
73°
59°
2
71°
59°
3
72°
56°
4
71°
53°
5
72°
51°
6
73°
56°
7
75°
57°
8
76°
58°
9
77°
58°
10
75°
57°
11
76°
57°
12
78°
58°
13
76°
54°
14
68°
51°
15
69°
49°
16
68°
53°
17
70°
51°
18
72°
54°
19
73°
54°
20
73°
52°
21
69°
53°
22
72°
53°
23
75°
54°
24
75°
53°
25
74°
53°
26
75°
52°
27
73°
53°
28
67°
50°
29
72°
45°
30
68°
46°
1
61°
40°
2
60°
45°
3
66°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Frankenmuth
Frankenmuth's September 2026 forecast shows daily high temperatures ranging from 60° to 78°, with overnight lows between 38° and 59°. The average high for September is 72° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Frankenmuth. See also: October | November | December.
